Global Patent Index - EP 0976307 A1

EP 0976307 A1 2000-02-02 - POSITIVE WORKING PHOTODEFINABLE RESIN COATED METAL FOR MASS PRODUCTION OF MICROVIAS IN MULTILAYER PRINTED WIRING BOARDS

Title (en)

POSITIVE WORKING PHOTODEFINABLE RESIN COATED METAL FOR MASS PRODUCTION OF MICROVIAS IN MULTILAYER PRINTED WIRING BOARDS

Title (de)

MIT POSITIV ARBEITENDEM PHOTOSTRUKTURIER BAREM HARZ BESCHICHTETES METALL ZUR MASSENHERSTELLUNG VON MIKROKONTAKLÖCHERN IN MEHRSCHICHTIGEN LEITERPLATTEN

Title (fr)

METAL REVETU DE RESINE POSITIVE PHOTO-DEFINISSABLE POUR PRODUCTION DE MASSE DE TROUS D'INTERCONNEXION A L'ECHELLE MICROSCOPIQUE DANS DES TABLEAUX DE CONNEXIONS MULTICOUCHE IMPRIMES

Publication

EP 0976307 A1 (EN)

Application

EP 98914668 A

Priority

  • US 9807220 W
  • US 4432797 P
  • US 5426398 A

Abstract (en)

[origin: WO9847332A1] High density built-up multilayer printed circuit boards are produced by constructing microvias with positive working photoimageable dielectric materials. A positive working photosensitive dielectric composition (4) on a conductive foil (2) is laminated to conductive lines (6) on a substrate (8). After imaging the foil (2), and imaging and curing the photosensitive dielectric composition (4), vias (14) are formed to the conductive lines (6). Thereafter the conductive lines (6) are connected (16) through the vias (14) to the conductive foil (2), and then the conductive foil (2) is patterned.

IPC 1-7 (main, further and additional classification)

H05K 3/46

IPC 8 full level (invention and additional information)

H05K 3/00 (2006.01); H05K 3/46 (2006.01); H05K 3/38 (2006.01)

CPC (invention and additional information)

H05K 3/4652 (2013.01); H05K 3/0023 (2013.01); H05K 3/381 (2013.01); H05K 3/4644 (2013.01); H05K 2201/0355 (2013.01); H05K 2203/0551 (2013.01); H05K 2203/1152 (2013.01)

Citation (search report)

See references of WO 9847332A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9847332 A1 19981022; EP 0976307 A1 20000202; JP 2000516771 A 20001212; KR 20010006494 A 20010126

INPADOC legal status


2000-05-24 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20000324

2000-04-05 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ISOLA LAMINATE SYSTEMS CORPORATION

- Ref Legal Event Code: RAP1

2000-02-02 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991112

2000-02-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-02-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL PAYMENT 19991124;LT PAYMENT 19991124;LV PAYMENT 19991124;MK PAYMENT 19991124;RO PAYMENT 19991124;SI PAYMENT 19991124